Regardless, they may have a point. Journalism has public good aspects to it – the threat that an investigative journalist uncovers a rort or corruption helps to discipline politicians, which provides benefits even to those who do not help to pay for it by watching or reading. Many people might free-ride rather than contribute.This can not be right. What Krupp is describing isn't a public good but a good with neighbourhood effects. That is, there are positive (in this case) externalities to journalism but this is not enough to make journalism a public good.
If journalism really is a public good then how is it that newspapers, for example, can generate income by selling their papers or putting material behind paywalls. Paywalls and selling papers mean that journalism is excludable. These things wouldn't generate income otherwise. The important point here is that the journalism and the newspaper/website are bundled, you need both to get a useful product and you can exclude by using the newspaper/website.